Kapeka backdoor sigma rules

[swachchhanda000]

Summary of the Pull Request

Kapeka backdoor sigma rules

Changelog

new: Suspicious Backdoor Dropped by Kapeka Loader
new: Kapeka Backdoor Binary Loaded by Rundll32.exe
new: Kapeka Backdoor Execution via RunDLL32
new: Kapeka Backdoor Autorun Persistence
new: Kapeka Backdoor Persistence through Schtasks
new: Kapeka Backdoor Persistence Autorun Registry modification
new: Kapeka Backdoor Configuration Persistence
new: Kapeka Backdoor Scheduled Task Creation

Example Log Event

Relevant Links:

1. https://www.withsecure.com/en/whats-new/pressroom/withsecure-uncovers-kapeka-a-new-malware-with-links-to-russian-nation-state-threat-group-sandworm
2. https://app.any.run/tasks/1efb3ed4-cc0f-4690-a0ed-24516809bc72/
3. https://labs.withsecure.com/publications/kapeka
4. https://www.virustotal.com/gui/file/bd07fb1e9b4768e7202de6cc454c78c6891270af02085c51fce5539db1386c3f/behavior

Fixed Issues

SigmaHQ Rule Creation Conventions

• If your PR adds new rules, please consider following and applying these conventions